import { isObj } from '../common/validator'
const defaultOptions = {
    type: 'text',
    mask: false,
    message: '',
    show: true,
    zIndex: 1000,
    duration: 2000,
    position: 'middle',
    forbidClick: false,
    loadingType: 'circular',
    selector: '#van-toast',
}
let queue = []
let currentOptions = Object.assign({}, defaultOptions)
function parseOptions(message) {
    return isObj(message) ? message : { message }
}
function getContext() {
    const pages = getCurrentPages()
    return pages[pages.length - 1]
}
function Toast(toastOptions) {
    const options = Object.assign(Object.assign({}, currentOptions), parseOptions(toastOptions))
    const context = options.context || getContext()
    const toast = context.selectComponent(options.selector)
    if (!toast) {
        console.warn('未找到 van-toast 节点，请确认 selector 及 context 是否正确')
        return
    }
    delete options.context
    delete options.selector
    toast.clear = () => {
        toast.setData({ show: false })
        if (options.onClose) {
            options.onClose()
        }
    }
    queue.push(toast)
    toast.setData(options)
    clearTimeout(toast.timer)
    if (options.duration != null && options.duration > 0) {
        toast.timer = setTimeout(() => {
            toast.clear()
            queue = queue.filter((item) => item !== toast)
        }, options.duration)
    }
    return toast
}
const createMethod = (type) => (options) => Toast(Object.assign({ type }, parseOptions(options)))
Toast.loading = createMethod('loading')
Toast.success = createMethod('success')
Toast.fail = createMethod('fail')
Toast.clear = () => {
    queue.forEach((toast) => {
        toast.clear()
    })
    queue = []
}
Toast.setDefaultOptions = (options) => {
    Object.assign(currentOptions, options)
}
Toast.resetDefaultOptions = () => {
    currentOptions = Object.assign({}, defaultOptions)
}
export default Toast
